Pressure-recording device



um. 0 L E H C T A B nr.. l. m o M o fN\ ERBSSURB RECORDING DEVICE.

No'. 556,081, Patented Mar.V 10, 1896.

A wth/Maen 6am/Ld QZ@ 010 Lmm WASIHNG'IO UNITED 'STAT-Es vPATENT OFFICE.

JOSEPH F. BATOHELOR, OF BROOKLYN, NEV YORK.

PRESSURE-RECORDING DEVICE.

SPECIFICATION forming part of Letters Patent No. 556,081, dated March 10, 1896.

Application filed May 2, 1894:. Serial No. 509,766. (No model.)

To a/ZZ whom it may concern:

Be it known that I, JOSEPH F. BATCHELOR, a citizen of the United States, and a resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Pressure-Recording Devices, of which the following is a specilication.

My invention relates to improvements in pressure-recording devices-that is to say, devices wherein a record is made as to the time and duration in which pressure is exertedand the same is adapted to be employed in connection with whistles operated by pressure, as steam, or in any other connection in which it is desirable to record the timel at which pressure may be present in such relation as to effect the device here employed and the length or duration of time in which such pressure is present.

l have illustrated my invention in the accompanying drawings, in which like letters refer to like parts.

Figure l is a form of construction in which my invention may be applied wherein the record is made mechanically. Fig. 2 is a form in which the record may be made by means controlled electrically.

In Fig. 1, A is a pipe in which a chamber B is interposed, having a port connected with a cylinder having one end closed and the other entering into the chamber B. lb2 is a piston-head and b3 a piston-rod. b4 is a point which may be a puncturin g or marking point, secured to the end of the piston-rod, and b5 is a spring interposed between the head of the cylinder and the head b2. O is a time mechanism operating` a stem c', and c2 is a disk secured to said stem c and revolving therewith with the operation of the time mechanism C.

The operation of this device is as follows: Vhen pressure is interposed into the pipe A and chamber B it affects the cylinder-head h2 and drives the point h4 against the disk c2 to make a mark or puncture therein to indicate that pressure has been before the cylinder-head. It will be understood that this disk is preferably divided, in the usual form, into days or hours, as the case may require. The disk, as stated, is caused to revolve by the time mechanism C, and as such revolutions Vprogress the record will be made upon the same by the point vb4 either in the form of punctures or marks. According to the length of time that the pressure is exerted in the chamber B, so will the length of the mark indicate the same.

In Fig. 2, A is a pipe-for instance, say, steam-pipe-leading to a steam-whistle. F is a diaphragm interposed in a port in said pipe. f is a circuit-maker carried by the diaphragm, and f2 and f3 are'contact-plates in circuit connection with an electromagnet G. D is a timestamp in any of the usual forms, having a printing-hammer d secured to an armature for said magnet g. E is a spool upon which is wound a paper ribbon or tape e, which passes under the printing mechanism of the time-stamp and between the rollers e2 and e3. e2 and e3 are rollers between which said paper is intended to pass to feed the same to the printing device. el is a figurative representation of a motor, preferably a clock-movement, suitably connected to operate the roller e2 in a direction to feed the paper to the printing mechanism of the time-stamp. e5 is a pin secured to the roller e2. e6 is a detent-lever pivoted at eT to arrest the movement of the roller e2.

The operation of this device is as follows: Vhen pressure is introduced into the pipe A it affects the diaphragm F and causes the circuit-maker f' to make electrical contact with the contact-plates f2 and f2, thus completing a circuit through the electromagnet G, thus attracting the armature g to operate the printing mechanism of the time-stamp D, and cause an impression to be made from the time-stamp on the ribbon e', at the same time actuating the detent-lever e6 to release the feed-roller e2, thus causing the paper to be continually fed to the printing mechanism until the roller c2 has made a complete revolution, and the pin e5 engages the detent-lever e when its motion is arrested.

It will be understood that when the diaphragm F is affected by the pressure the contact-maker f passes over the contact-plates f2 and f2, completing a circuit thereby, and with the further expansion of the diaphragm the circuit is broken.

It will also be understood that with the retraction of the diaphragm due to the eX- haustion of the pressure in the pipe A the circuit is again made as the contact-maker returns over the contact-plates f2 and f2, thus again causing the elcctromagnets to print a record on the tape to indicate such return.

It will be understood from this description that with the expansion ofthe diaphragm and the making of the circuit a record is made of the time at which this occurs, and again as the diaphragm reti-acts a second record is made.

It will be manifest that if the impulses of the diaphragm are Very rapid the distance between the impressions on the ribbon will indicate the length of time that the pressure is present before the diaphragm-that is to say, with the expansion of the diaphragm the circuit is made and the printing takes place, and at the same time the detent is released and the tape is fed to the stamp, and with the retraction of the diaphragm the circuit is made again and the printing is repeated. lf the second making of the circuit occurs before the time-stamp has had time to complete its change of time indication, then the same time will be indicated twice, but by reason of the feed of paper there will be a space between the impressions from thc stamp, the length of which space will indicate the length of time the pressureis present bcfore the diaphragm. If, on the other hand, the pressure is exerted long enough to permit the time-stamp to change, the imprint from the stamp will indicate also the length of time the pressure is exerted against the diaphragm.

l. In a pressure-recording device, a diaphragm operated by pressure, in combination with a time-stamp, an electromagnet in circuit, an armature for said magnet connected to operate the printing mechanism of the stamp and also a detent controlling the feed of paper to the stamp, and means to control said circuit operated by the movement of the diaphragm, first by its expansion and second by its retraction, substantially as described.

2. In a prcssure-recording device a diaphragm operated by pressure in combination with a time-stamp, an electromagnct in ein cuit, and means to control said circuit, consisting of a contact-maker carried bythe diaphragm, engaging contact-plates as the diaphragm expands, and again as the diaphragm retracts, an armature for said magnet connected to operate the printing mechanism of the stamp, and also a detent controlling the feed of the paper to the stamp, substantially as described.

3. In a pressure-reeording device the combination with a chamber adapted to receive pressure, a diaphragm exposed to said pressure, and connected with a circuit-controller, controlling an electric circuit through an electromagnet, iirst by the expansion of the diaphragm to make and break the circuit, and second by the contraction of the diaphragm to make and break the circuit, said magnet having an armature connected to operate the printing mechanism of a timestamp, and a detent controlling a motor to feed the paper to the printing mechanism, substantially as described.

Signed in New York, in the county of New York and State of New York, this 10th day of April, A. D. 18S- i.

JOSEPH F. BA'lClllilLOR.

lVitncsscs:

WILLIAM M. SEUFERT, EDWARD J. MCGUIRE. 

